Johnson Controls CK721-A User Manual

Figure 3-8: First Level Module Locations in S300-XL
S300 Expansion Enclosures CK721-A Installation and Operation
3-8 24-10349-8 Rev. B
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2012 Johnson Controls, Inc.
Modules can be installed inside the S300 expansion enclosure. The installation of
the following modules are discussed in this chapter:
 S300-RDR2 - reader module
 S300-I16 - Unsupervised Input module
 S300-IO8 - Unsupervised Input/Output module
 S300-SIO8 - Supervised Input/Output module
 S300-SI8 - Supervised Input module
The maximum distance from a CK721-A to the last module connected to it is 4000
feet (1219
meters).
To facilitate future expansion, modules should be installed sequentially
as shown in
Figure 3-8 through Figure 3-10.
IMPORTANT
Before installing modules in an S300 expansion enclosure, ensure the
power is OFF. The battery and transformer must be disconnected for the
power to be completely OFF.
3
4
5
2
1

Johnson Controls CK721-A Specifications

General

Brand	Johnson Controls
Model	CK721-A
Category	Controller
Language	English